5W Blue Laser Diode Module 450nm TTL PWM Engraving Head DC12V
5W Blue Laser Diode Module 450nm TTL PWM Engraving Head DC12V
5W Focusable Blue Laser Diode Module – 450nm TTL/PWM Engraving Dot Head
Take your laser engraving, cutting, and marking projects to the next level with this high-performance 5W 450nm Blue Laser Diode Module. Designed for precision and reliability, this compact module features TTL/PWM control compatibility, a professional focusing optical lens, and a robust 12V DC input — making it an ideal upgrade or replacement laser head for CNC engravers, DIY laser machines, and professional marking systems.
Made in Mainland China.
Key Features
- Wavelength: 445nm – 450nm blue laser for efficient engraving and marking on a wide range of materials
- Output Power: ≥4,500mW (5W) with ±5% performance stability for consistent, repeatable results
- TTL/PWM Control: Supports TTL PWM modulation (0–5V input range) with Active High trigger (>DC 2.0V), operating up to 30KHz — seamlessly integrates with most CNC controllers and GRBL boards
- Focusable Design: Professional focusing optical lens with a focal range of 2–8cm; produces a long strip light spot for precise line engraving
- Compact & Sturdy: Mini form factor at just 40×40×85mm — easy to mount on existing gantry systems
- DC 12V Input: Powered by a standard 12V DC supply; LD input: 5V / 4.2A
- Long Lifespan: Rated for over 8,000 hours of operation
- Safety Class 4: High-powered laser — always use appropriate laser safety eyewear and follow all applicable safety guidelines
- Recommended Operating Temperature: -10°C to 40°C
Technical Specifications
| Laser Wavelength | 445nm / 450nm |
| Output Power | ≥4,500mW (5W) |
| Stability | ±5% |
| Safety Class | Class 4 |
| Light Spot Shape | Long strip light spot |
| Focal Range | 2–8cm |
| Lens Material | Professional focusing optical lens |
| Input Voltage | DC 12V |
| LD Input Voltage | 5V |
| LD Input Current | 4.2A |
| Control Mode | TTL / PWM |
| Control Input Range | 0–5V |
| TTL Trigger | Active High (>DC 2.0V) |
| Operating Frequency | ≤30KHz |
| Operating Temperature | -10°C to 40°C |
| Dimensions | 40 × 40 × 85mm |
| Lifetime | >8,000 hours |
What's in the Box
- 1× 450nm 5W Blue Laser Dot Module
Safety Notice
⚠️ This is a Class 4 high-powered laser. Never aim the laser at people, animals, or reflective surfaces. Always wear certified laser safety eyewear rated for 450nm wavelengths when operating this module. For guidance on laser safety standards, refer to the OSHA Laser Hazards resource.
Frequently Asked Questions
Q: Is this 5W blue laser diode module compatible with GRBL-based CNC engravers?
A: Yes. The module supports TTL/PWM control with a 0–5V input range and Active High trigger (>2.0V), which is fully compatible with most GRBL-based CNC controllers and engraving machines. Simply connect the TTL/PWM signal wire to your controller's laser output pin.
Q: What materials can this 450nm blue laser module engrave or mark?
A: This 5W 450nm blue laser module is well-suited for engraving wood, bamboo, leather, anodized aluminum, coated metals, acrylic, and dark plastics. For cutting, it works best on thin materials such as balsa wood, thin plywood, and felt. Material results may vary based on feed rate, focus, and surface finish.
Q: What safety precautions should I take when using a Class 4 laser module?
A: Class 4 lasers are the highest risk category and can cause immediate eye and skin injury if used improperly. Always wear laser safety glasses rated for 445–450nm wavelengths, operate in a well-ventilated area, never leave the laser unattended while running, and ensure the beam path is clear of reflective objects. Keep children and pets away from the operating area at all times.
Q: What power supply do I need for this laser module?
A: This module requires a stable DC 12V power supply. Given the LD input current of 4.2A, we recommend a power supply rated for at least 5A at 12V to ensure reliable, stable operation and to protect the laser diode from voltage fluctuations.